System and method for efficient access for remote storage devices
A client device for accessing remote storage devices. The client device includes: a processing unit communicatively connected to: a network interface and a memory; the network interface configured to communicatively connect the client device to a network comprising the client device and a storage server, the storage server comprising one or more storage devices, a remote direct memory access network interface controller (rNIC), and a primary processing unit; the memory containing instructions, that, when executed by the processing unit, configure the client device to: send an input/output (I/O) request for a storage device of the one or more storage devices; receive an indication from the rNIC based on the sent I/O request, the indication including an interrupt generated by the rNIC in response to the I/O request.
1. A client device for accessing remote storage devices, the client device comprising:
a processing unit communicatively connected to a network interface and a memory;
wherein the network interface is configured to communicatively connect the client device to a network comprising the client device and a storage server, the storage server comprising at least one storage device, a remote direct memory access network interface controller (rNIC), and a primary processing unit;
the memory containing instructions, that, when executed by the processing unit, configure the client device to:
send an input/output (I/O) request for a storage device of the one or more storage devices;
receive an indication from the rNIC based on the sent I/O request, the indication including an interrupt generated by the rNIC in response to the I/O request, wherein the indication received from the rNIC indicates if the I/O request has been either completed or not completed, wherein the interrupt is generated by the rNIC in response to the rNIC sending the I/O request to the storage device and intercepting, from the storage device, a response respective of the I/O request intended for the primary processing unit.
2. The client device of claim 1 , wherein the I/O request includes at least one of: a storage device identifier, a storage block, a storage address, and data to be written to at least one of the at least one storage device.
3. The client device of claim 1 , wherein the indication is received before the I/O request has been executed in its entirety by the storage device.
4. The client device of claim 1 , wherein the client device is further configured to:
receive a response respective of the I/O request.
5. The client device of claim 4 , wherein the received response is stored directly in the memory of the client device.
6. The client device of claim 1 , wherein the client device is configured to support remote direct memory access (RDMA) protocol by the rNIC.
7. A non-transitory computer readable medium having stored thereon instructions for causing a processing circuitry to perform a process, the process comprising:
sending an input/output (I/O) request for a storage device of at least one storage device over a network connection; and
receiving an indication from a remote direct memory access network interface controller (rNIC), the indication including an interrupt generated by the rNIC in response to the I/O request, wherein the indication received from the rNIC indicates if the I/O request has been either completed or not completed, wherein the interrupt is generated by the rNIC in response to the rNIC sending the I/O request to the storage device and intercepting, from the storage device, a response respective of the I/O request intended for the primary processing unit.
8. A method for providing a client device remote access to a storage server controlling at least one storage device by a network interface controller (NIC) comprising a processor, a first memory and a second memory, the method comprising:
sending an input/output (I/O) request for a storage device of at least one storage device over a network connection; and
receiving an indication from a remote direct memory access network interface controller (rNIC), the indication including an interrupt generated by the rNIC in response to the I/O request, wherein the indication received from the rNIC indicates if the I/O request has been either completed or not completed, wherein the interrupt is generated by the rNIC in response to the rNIC sending the I/O request to the storage device and intercepting, from the storage device, a response respective of the I/O request intended for the primary processing unit.
9. The method of claim 8 , wherein the I/O request includes at least one of: a storage device identifier, a storage block, a storage address, and data to be written to at least one of the at least one storage device.
10. The method of claim 8 , wherein the indication received from the rNIC indicates if the I/O request has been either completed or not completed.
11. The method of claim 8 , wherein the indication is received before the I/O request has been executed in its entirety by the storage device.
12. The method of claim 8 , further comprising:
receiving a response respective of the I/O request.